Dealer
Service
Bulletin

NO.: 7SB011-15-01A
SECTION: Slideouts/Leveling Systems
DATE: August 14, 2015

MODELS
AFFECTED: All Winnebago Industries Motor Homes with LCI’s Schwintek In-Wall® Slideout Mechanism
SUBJECT:

Rebuilding Mechanisms vs. Complete Replacement
PLEASE FORWARD THIS INFORMATION TO YOUR RV SERVICE & PARTS MANAGER.

Overview: Previously, failure of a key part on one side of the Schwintek mechanism required replacement of
the complete mechanism – i.e. both ends of the slideout installation. Sourcing a complete mechanism in a timely
basis was affected by availability and ground-freight shipping requirements due to the physical size of the
mechanism. The end result was down time for the coach and coach owner. In many cases, simply rebuilding
the affected portion of the mechanism would remedy the situation, however, individual parts were not available
to do so. LCI, in cooperation with Winnebago Industries, has now made specific parts available for field repairs
and rebuilding of a C-Column Assembly.
Preliminary Visual Inspection: Prior to conducting any disassembly or repair efforts, it is imperative to perform
a comprehensive inspection of the In-Wall equipment and an assessment of the slideout installation. The InWall Evaluation Diagnostic Sheet is included with this document.
Proper diagnostics include:
1. Inspect for the presence of ‘foreign objects’ between sidewall and slideout room. Inspect under the
room also.
2. Inspect for any damage to wiper seals. Ensure wiper seals are not interfering with the gear racks.
3. Inspect the condition of the bulb seals on interior and exterior picture-frame trim. Verify seals are being
compressed versus crushed or pinched.
4. Inspect condition of the teeth on the gear-rack for spur-gear related damage. Verify spur-gear
‘contact’/tooth-pattern is centered on the gear-rack teeth.
5. Inspect the V-roller installations and the roller track on the gear-rack for damage.
6. Inspect the raceway on the gear-rack that engages the bearing blocks shoe for any sign of scuffing or
galling.
7. Ensure the upper and lower gear-racks are installed parallel with each other. Record the measurements
on the Evaluation Sheet.
8. Ensure the In-Wall C-Column assembly is square in the coach sidewall and square to the slideout room.
Record the measurements on the Evaluation Sheet.
9. Ensure the floor-rollers are in contact with the bottom-side of the slideout room. Record position(s) of
any not supporting room/carrying weight on the Evaluation Sheet.
10. If a warrantable repair is deemed necessary from the visual inspection, contact Technical Service for
authorization at (866) 653-4329.
Repair vs. Replace: A complete Schwintek In-Wall slideout mechanism contains front and rear C-Column
assemblies that differ somewhat. When viewing a slideout room from outside, facing the coach, the left-hand
C-Column is referred to as the ‘fixed column’ and the right-hand C-Column as the ‘float column’. Most parts are
interchangeable between the fixed and float columns but several key parts are side-specific. Additionally, the
Slide Repair Parts Package excludes major components such as the C-Column, Gibs and Torque-Shaft, so a
thorough preliminary inspection of the mechanism is necessary to determine rebuilding or complete
replacement.

IMPORTANT THAT ALL PARTS AND SERVICE PERSONNEL READ AND INITIAL
PARTS
MANAGER

SERVICE
MANAGER

SERVICE
PERSONNEL

PARTS
PERSONNEL

PAGE

1

OF 19

If after inspection, it is determined the assembly can be repaired, 184923-01-70A Slide Repair Parts Package
may be used. This Repair Parts Package contains the following items and all must be used for a successful
repair.
1 - Upper Gear Rack, float side (38 1/8” – cut to length as needed)
1 - Upper Gear Rack, fixed side (38 1/8” – cut to length as needed)
1 - Lower Gear Rack, float side (38 1/8” – cut to length as needed)
1 - Lower Gear Rack, fixed side (38 1/8” – cut to length as needed)
2 - Upper Bearing Block Castings
2 - Lower Bearing Block Castings
4 - V-Rollers
4 - Retainer/Snap-Rings for V-Rollers
4 - Plastic Shoes
2 - Foam Plugs
2 - Flat Gear-Rack Plugs
4 - Aluminum Rivets (fixed)
8 - Plastic Rivets (float)
Self-sealing screws are used for the slide mechanism installation and cannot be reused. Winnebago Industries
recommends stocking these screws in your dealership inventory. The quantity of screws required for each
installation may vary (20-50 per room). Each installation uses a combination of flat and pan head screws.
Clamp to Column Screws:
 179110-01-02A - #10-16x¾” Black Self-Sealing Flat Head Screws
Clamp to Sidewall Screws:
 154938-10-02A - #12-14x1¼” Black Self-Sealing Pan Head Screws
Gear Rack to End Wall Screws (approximately 50 per room):
 000G39-10-129 - #10-16x¾” Silver Non-Sealing Pan Head Screws
Other repair parts available but not provided in this package include:
 Motor and Motor Mounting Parts
 Spur Gear
 Motor/Torque Shaft Coupler
 Wire Harness Assembly
Included with this document is the LCI In-Wall Slideout Repair Manual provided by Lippert Components.
This bulletin is for information only.

Steven R. Evenson
Director of Parts and Service

Schwintek InWall Slide Evaluation Worksheet
Complete worksheet and return to Winnebago Tech Service Dept.
Winnebago Tech Service Dept PH‐ 866‐653‐4329
Winnebago Tech Service Dept Fax‐641‐585‐6704
Winnebago Tech Service E‐mail: [email protected]

Tech:_______________________ Dealer # _________
Serial # _____________________ Model __________
Slideout: L.F. _____ L.R. _____ R .R. _____ R.F. _____
Describe customer concern with slideout. __________
____________________________________________
____________________________________________
____________________________________________

Visual inspection for gear rail & shoe damage

(fig 1)

Before Repair:
1. Visually inspect for any gear rail and shoe damage (fig ).
2. Measure gear rail parallelism. Measurements should be
the same (fig 2).
(fig 2)

3.Check & note any codes on slide control ___________
Room installation measurements: (fig 4).
Measurements to be taken with slideout extended 3”.
Measure from slideout end wall above gear rail to end of
trim.
Left Upper _____________ Right Upper ____________
Left Lower _____________ Right Lower ____________
Extend slideout fully & retake measurements (fig 4).
Left Upper _____________ Right Upper ___________
Left Lower _____________ Right Lower ___________

(fig 3)

Floor and roof measurements: Take measurements
front to rear with slideout fully extended (fig 3).
Inboard roof measurement ________________ m.m.
Outboard roof measurement ________________ m.m.
Inboard floor measurement ________________ m.m.
Outboard floor measurement ________________ m.m.
Measure lower wipe seal clearance: (fig 5).
Front ______m.m Center ______m.m. Rear ______m.m.

(fig 4)

Roller Contact:
Pull down lower wipe seal (fig 6).
Does the front roller contact the slide floor? _________
Does the rear roller contact the slide floor? _________

After Repair measurements:
Room installation measurements (fig 4).
Measurements to be taken with slideout extended 3”.
Measure from slideout end wall above gear rail to end of
trim.
Left Upper _____________ Right Upper ____________
Left Lower _____________ Right Lower ____________
Extend slideout fully and retake measurements (fig 4).
Left Upper _____________ Right Upper ___________
Left Lower _____________ Right Lower ___________

(fig 5)

(fig 6)
081015

IN-WALL™ Slide-out (Winnebago)

REPAIR MANUAL

Rev: 07.13.2015

Page 1

IN-WALL™ Winnebago Repair Manual

TABLE OF CONTENTS
Safety Information
Introduction
Preliminary Visual Inspection
Assembly Removal Procedure
Tools Required
Procedure
Replacement of Entire Assembly Required
IN-WALL™ Gear Racks
Inspection
Replacement
Shoe
Inspection
Replacement
V-Roller
Inspection
Replacement
Bearing Block/Spur Gear
Inspection
Replacement
Re-Timing Procedure
Assembly Installation Procedure
Synchronizing the Slide-Out Motors
Repair Packages Part Numbers
Standard (W/ Winnebago Notch)
Bearing Block Repair Package - 379060
Notes

2
2
3
4
4
4
6
7
7
7
8
8
8
9
9
9
10
10
10
11
12
13
14
14
14
15

Safety Information

Failure to act in accordance with the following may result in death, serious injury,
coach or property damage.
The IN-WALL™ Slide-out System is intended for the sole purpose of extending and retracting the slide-out room. Its
function should not be used for any purpose or reason other than to actuate the slide-out room. To use the system
for any reason other than what it is designed for may result in death, serious injury or damage to the coach.
Before actuating the system, please keep these things in mind:
1. The unit should be parked on solid and level ground and the area around the unit clear of obstructions
that may cause damage when the slide-out room is being repaired.
2. Be sure all persons are clear of the coach prior to the slide-out room maintenance.
3. Keep hands and other body parts away from slide-out mechanisms during actuation.

Introduction
This document will aid in determining whether it is necessary for the assembly to be repaired or replaced entirely.
Rev: 07.13.2015

Page 2

IN-WALL™ Winnebago Repair Manual

Standard Repair Package Includes: Bearing Block Package Includes:
NOT INCLUDED:
Upper Gear Rack (38 1/8”)
Lower Bearing Block
Coupler
Lower Gear Rack (38 1/8”)
Upper Bearing Block
Spur Gear (300:1/ 500:1)
V-Roller (292801)
(2) Aluminium Rivets
Snap Ring (234180)
(4) Plastic Rivets
Shoe (238463)
Foam Wear Plug (283544)

Flat Back Rack Plug (282573)

If the repair necessitates it, replacement spur gears, and couplers can be ordered separately.
Note: See page 14 for more details and part numbers.

Preliminary Visual Inspection
Prior to conducting any repair or replacement, it is imperative to ensure that the problem with the slide-out is
properly diagnosed and that the issue will be corrected with a repair or replacement. Proper diagnosis of the issue
includes ruling out a slide-out obstruction, a slide-out seal issue, or a slide-out measurement that is outside of
suggested parameters. Prior to slide-out repair or replacement, be sure to check the following:
1. Check assembly and slide room for any type of obstruction that may have caused the initial concern.
2. Inspect the wiper seals for tearing or other damage.
3. Make sure that the wiper seals are not being pulled into the gear rack causing binding.
4. Check that the interior and exterior bulb seals are compressing properly when the slide-out is
extended or retracted.
5. It is recommended that measurements be taken to make sure the gear racks are parallel and that the
C-Column is square. Make sure the measurements are taken from the same location at both ends of
the gear racks (Figs. 1 and 2).
6. Measure from the outside edge of the clamp strap to the face of the slide room wall. Variance could be
up to +3mm or -1.5mm (Fig. 3).
Note: LCI prefers to have these measurements submitted in picture format to assure proper guidance is
given.
Fig. 1

Fig. 2

Fig. 3
84mm +3mm/-1.5mm

Gear Rack

45mm +/- 3mm

C-Column

Clamp Strap
Note: Slide box T-molding has been
removed from (Fig. 3) for clarity.
Rev: 07.13.2015

Page 3

IN-WALL™ Winnebago Repair Manual

Assembly Removal Procedure
Tools Required
•
•
•
•
•

Electric drill or cordless screw gun
Rubber mallet
2x4 (length=gap between T-molding and side of unit-1/4”)
Razor knife
Screw jack

Fig. 4

B

A

Procedure
Note: If the slide will not move by use of the switch it may
be necessary to use one of the three methods (A, B
or C) below:
A. Use electronic override mode on the IN-WALL™
controller.
I. Press the “mode button” six times quickly,
press a 7th time and hold for approximately 5
seconds (Fig. 4A).
II. The red and green LED lights will begin to flash
indicating system is in override mode (Fig. 4B).
III. Using the wall switch, press and hold the “IN”
button until the unit comes completely in.
B. Disconnect the motor harnesses from the INWALL™ controller to allow the slide room to be
manually pushed into position (Fig. 5A).
C. Disengage the motors to allow the slide room to be
manually pushed into position (Fig. 5B).
1. Remove first 3 sets of screws in each rack on the interior
side of slide room.
2. Extend the slide room until about 8" of the room is left
inside the unit.
3. Support the slide room with a screw jack or other
adequate support before continuing.
4. Place the 2x4 block on top of the slide room (standing
on its edge between the T-Molding and side of the unit.)
5. Reach inside the top of the slide column to disconnect
the wiring harness from the motor.
6. Using a razor knife, carefully cut the caulk bead along
the edge of the slide column.
7. Remove the plastic screw cover to access the mounting
screws for the clamp strap. Remove the clamp strap.
8. Create a jumper wire from an extra wiring harness: cut
a 3-foot length of the harness (with the motor wire
connector attached) and strip the ends of the red and
black wires (Fig. 6).
9. Plug the jumper wire into the motor wire.
10. Holding the black and red wires against the terminals
of your cordless screw gun battery, determine which
polarity actuates the motor in the retract direction. The
slide column should slide away from the side of the unit.
Rev: 07.13.2015

Page 4

Fig. 5
B
A

Fig. 6

IN-WALL™ Winnebago Repair Manual

11. Remove all screws from the gear racks (Fig. 7).
Note: You may need to pry the gear racks away from the sides of the slide room with a flathead screwdriver
or putty knife. Do this carefully so you don’t damage the finish on the side of the slide room.
Slide Room

Fig. 7

Upper Gear Rack

#10 Pan Head Screws

12. Carefully slide the ends of the gear racks past the bulb seal on the T-molding.
13. Pull the full system out and set aside.
Note: LCI recommends that inspection and repair of the assembly be done on a clear workbench to
prevent further damage to the system.
14. If motor is still in the column, remove at this time. By removing the clamp strap previously, the motor
should be free to move in the column.

Rev: 07.13.2015

Page 5

IN-WALL™ Winnebago Repair Manual

Replacement of Entire Assembly Required
Damages listed below will require the inspected system to be replaced with a completely new assembly.
A. Torque Shaft – Inspect the torque shaft for a bow or bend. Also inspect the torque shaft to
assure that it has not dropped. Also make sure the stakes in the top of the torque shaft (Fig. 8)
are adequately keeping the shaft in place. If the torque shaft is found to be faulty, the inspected
system should be replaced entirely.
B. Gibs (Fig. 8A)– In the event that a gib is found to be broken or loose, the inspected system should
be replaced entirely. This includes a broken, loose, or missing rivet.
C. Metal shavings near the spur gear – During inspection of the bearing block it is important to look
for shavings around the spur gear (See locations outlined in Fig. 9A, B, C). This could indicate
excessive wear around the torque shaft caused by the spur gear digging into the torque shaft.
D. “C” Column – In the rare event that the column has been damaged in any way, the inspected
system should be replaced entirely.
Note: If replacing the entire assembly, skip to the Assembly Installation Procedure on page 12.
Fig. 9

Fig. 8

Stakes